151 
MUREX Smithii. 
TAB. DLXXVJIL- fig, 1. 2. & 3. 
Spec. Char. Pyriform,, transversely striated, fur- 
nished with three rows of short tubercles, those 
of the upper row largest, pointed ; beak 
elongated, straight ; upper parts of the whorls 
flattened. 
Far. (3. spire produced : fig. 3. 
The spire being very short, the last whorl very large, 
and the beak much produced, give the pear-like form to 
this shell : two rows of the tubercles are wholly conceal- 
ed within the last whorl. When the shell is removed 
from the stone, the cast of the spire appears longer, and 
in var. (3. it is so much produced as to show the middle 
row of tubercles. 
The beautiful specimen represented at figs. 1. and 2. 
is nearly covered by a Flustra : it was collected in Alum 
Bay, Isle of Wight, by Gerrard E. Smith, Esq., whose 
zeal we wish to commemorate by naming it after him. 
The variety fig. 3 . is a cast found at Maida Hill, Pad- 
dington : it is in the collection of G. A. Mantell, Esq., 
who also possesses a cast of the first variety imbedded 
in part of a Septarium from Bognor. It seems to be a 
rare London Clay shell, as we know of no other speci- 
mens. 
